TWM452907U - Carbon fiber wheel rim and bicycle having the same - Google Patents

Description

Carbon fiber wheel frame and bicycle including the carbon fiber wheel frame

The present invention relates to a carbon fiber wheel frame and a bicycle, and more particularly to a carbon fiber wheel frame for improving heat dissipation and a bicycle including the carbon fiber wheel frame.

The conventional carbon fiber wheel frame has a tire portion extending radially outward to facilitate the engagement of the tire with the wheel frame. In general, the brake block is friction generated on the outside of the clamping wheel frame to reduce the speed of the bicycle. However, the position at which the brake block contacts the wheel frame is close to the tire portion, and therefore, the high heat generated by the friction and the pressure of the tire may cause deformation of the tire portion to cause safety concerns. Therefore, how to avoid the deformation of the carbon fiber wheel frame due to the high heat generated by the friction during braking is a very urgent goal.

The present invention provides a carbon fiber wheel frame and a bicycle, wherein a heat conducting layer is disposed on a contact surface of the wheel frame and the brake block to increase the heat dissipation effect, and a heat insulation layer is disposed between the heat conductive layer and the wheel frame to reduce friction. The heat energy is transmitted to the frame, thereby preventing the carbon fiber wheel frame from being deformed by the high heat generated by friction during braking.

The carbon fiber wheel frame of one embodiment of the present invention comprises an annular frame body, a heat insulating layer and a heat conducting layer. The annular frame is constructed of a carbon fiber composite material and has two opposing side portions that extend toward two opposite sides of the two brake blocks and radially outward. The heat insulation layer is provided on both sides and is made of a heat insulating material. The heat conducting layer is disposed on the surface of the heat insulating layer to form two opposite braking portions for contacting the brake block, wherein the heat conducting layer is composed of a heat conductive material.

A bicycle of another embodiment of the present invention includes a bicycle frame, a front wheel, a rear wheel, a steering element, and a transmission component. The front wheel and the rear wheel are respectively disposed on the bicycle frame The front side and the rear side, wherein at least one of the front wheel and the rear wheel comprises a carbon fiber wheel frame comprising an annular frame body, a heat insulating layer and a heat conducting layer. The annular frame is constructed of a carbon fiber composite material and has two opposing side portions that extend toward two opposite sides of the two brake blocks and radially outward. The heat insulation layer is provided on both sides and is made of a heat insulating material. The heat conducting layer is disposed on the surface of the heat insulating layer to form two opposite braking portions for contacting the brake block, wherein the heat conducting layer is composed of a heat conductive material. The steering element is coupled to the front wheel for controlling the direction of travel of the front wheel. The transmission element is coupled to the rear wheel for converting a user's pedaling force to drive the rear wheel.

In the following, the specific embodiments and the accompanying drawings are explained in detail, and it is easier to understand the purpose, technical content, characteristics and effects achieved by the present invention.

Referring to FIG. 1 and FIG. 2 , the carbon fiber wheel frame 10 of one embodiment of the present invention comprises an annular frame 11 , a heat insulating layer 12 and a heat conducting layer 13 . The annular frame 11 is composed of a carbon fiber composite material. In addition, the annular frame 11 has two opposite side faces 111 facing the two brake blocks 20 and two opposing clip portions 112 extending radially outward. The heat insulating layer 12 is disposed on the two side faces 111 of the annular frame 11. The heat insulation layer 12 is composed of a heat insulating material. In one embodiment, the heat insulating material may be an inorganic fiber composite material. For example, the insulating material comprises at least one of glass fibers, ceramic fibers, and asbestos fibers, and a resin such as an epoxy resin. In an embodiment, the heat insulating material may be a prepreg of the above fiber material.

The heat conducting layer 13 is disposed on the surface of the heat insulating layer 12 to form two opposing braking portions 131 for contacting the two brake blocks 20. The thermally conductive layer is composed of a thermally conductive material. For example, the thermally conductive material comprises a metal mesh and a resin such as an epoxy resin. In one embodiment, the thickness of the metal mesh is between 0.05 mm and 1 mm. According to the above structure, the heat conductive layer 13 can quickly conduct and disperse the heat energy generated by the friction when braking, and dissipate heat. In addition, the heat-insulating layer 12 disposed between the heat-conducting layer 13 and the annular frame 11 can reduce the heat energy generated during friction to the annular frame body 11, thereby avoiding the high heat generated by the carbon fiber wheel frame 10 due to friction during braking. Deformation.

Referring to FIG. 1 and FIG. 2 again, a method of manufacturing the carbon fiber wheel frame 10 of the present invention will be described. First, a plurality of carbon fiber composite materials are formed into an outer shape of the annular frame body 11, wherein the annular frame body 11 has two opposite side faces 111 facing the two brake blocks 20 and two opposite tire portions extending radially outward. 112. Next, the annular frame body 11, a heat insulating layer 12, and a heat conductive layer 13 are molded together and heat molded. As described above, the heat insulating layer 12 is disposed on the two side faces 111 of the annular frame body 11, and is composed of a heat insulating material. The heat conducting layer 13 is disposed on the surface of the heat insulating layer 12 to form two opposing braking portions 131 for contacting the brake block 20. The heat conducting layer is made of a thermally conductive material.

In one embodiment, the heat conductive material may be a metal mesh structure, and the resin in the carbon fiber composite material of the annular frame 11 and/or the inorganic fiber composite material of the heat insulation layer 12 is heated and melted during the heat forming process. The fluidity is such that the fluid dynamic resin can fill the mesh of the metal mesh, and the annular frame body 11, the heat insulating layer 12 and the heat conductive layer 13 are integrated into one body. According to the above manufacturing method, not only has the advantages of simple process, but also the annular frame body 11, the heat insulating layer 12 and the heat conductive layer 13 have a good bonding strength.

Referring to FIG. 3, a bicycle of one embodiment of the present invention includes a bicycle frame 31, a front wheel 32, a rear wheel 33, a steering member 34, and a transmission member 35. The bicycle frame 31 can be a metal frame or a carbon fiber frame, and the detailed structure can be modified according to the design or modification of the existing frame, and details are not described herein. The front wheel 32 and the rear wheel 33 are respectively disposed on the front side and the rear side of the bicycle frame 31, and at least one of the front wheel 32 and the rear wheel 33 includes the aforementioned carbon fiber wheel frame 10. The detailed construction of the carbon fiber wheel frame 10 has been described above and will not be described herein. The steering member 34 is coupled to the front wheel 32 for controlling the direction of travel of the front wheel 32. For example, the steering element 34 includes a handle and a conventional bicycle component such as a front fork. The transmission member 35 is coupled to the rear wheel 33 for converting a user's pedaling force to drive the rear wheel 33. For example, the transmission component 35 includes a conventional bicycle component such as a crank, a left and right pedal, a gear, and a chain. The user can step on the rear wheel 33 to rotate, thereby driving the bicycle forward.

In summary, the carbon fiber wheel frame of the present invention and the bicycle are connected to the wheel frame and the brake block. The contact surface is provided with a heat conducting layer to conduct and disperse the heat generated by friction during braking, thereby increasing the heat dissipation effect. In addition, a heat insulating layer is disposed between the heat conducting layer and the wheel frame to reduce heat energy generated during friction to the frame body. Therefore, the carbon fiber wheel frame of the present invention can avoid deformation due to high heat generated by friction during braking. problem.

The embodiments described above are only for explaining the technical idea and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them according to the scope of the patent. That is, the equivalent changes or modifications made by the people in accordance with the spirit revealed by this creation should still be covered by the scope of the patent of this creation.

10‧‧‧Carbon fiber frame

11‧‧‧ ring frame

111‧‧‧ side

112‧‧‧Clamps

12‧‧‧Insulation

13‧‧‧Conducting layer

131‧‧‧煞车部

20‧‧‧煞车块

31‧‧‧Bicycle frame

32‧‧‧ front wheel

33‧‧‧ Rear wheel

34‧‧‧Steering components

35‧‧‧Transmission components

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing the exploded structure of a carbon fiber wheel frame of an embodiment of the present invention.

Fig. 2 is a cross-sectional view showing the combined structure of the carbon fiber wheel frame of an embodiment of the present invention.

Fig. 3 is a schematic view showing the bicycle of an embodiment of the present invention.

10‧‧‧Carbon fiber frame

11‧‧‧ ring frame

112‧‧‧Clamps

12‧‧‧Insulation

13‧‧‧Conducting layer

131‧‧‧煞车部

20‧‧‧煞车块

Claims (11)

A carbon fiber wheel frame comprises: an annular frame body, which is composed of a carbon fiber composite material, and the annular frame body has two opposite sides extending toward two opposite sides of the two brake blocks and radially outwardly a heat insulating layer disposed on the two sides, the heat insulating layer is composed of a heat insulating material; and a heat conducting layer disposed on the surface of the heat insulating layer to form a contact for the brake block The heat conducting layer is made of a heat conductive material relative to the brake portion. The carbon fiber wheel frame of claim 1, wherein the heat insulating material comprises an inorganic fiber composite material. The carbon fiber wheel frame of claim 1, wherein the heat insulating material comprises at least one of a glass fiber, a ceramic fiber, and an asbestos fiber, and a resin. The carbon fiber wheel frame of claim 1, wherein the heat conductive material comprises a metal mesh and a resin. The carbon fiber wheel frame of claim 4, wherein the metal mesh has a thickness of between 0.05 mm and 1 mm. A bicycle comprising: a bicycle frame; a front wheel disposed on a front side of the bicycle frame; a rear wheel disposed on a rear side of the bicycle frame, wherein at least one of the front wheel and the rear wheel includes a a carbon fiber wheel frame, comprising: an annular frame body, which is composed of a carbon fiber composite material, and the annular frame body has two opposite sides facing the two brake blocks and two radially outwardly extending a heat insulating layer disposed on the two sides, the heat insulating layer is formed of a heat insulating material; and a heat conducting layer disposed on the surface of the heat insulating layer to form the brake block Contact 2 a heat conducting layer formed by a heat conductive material; a steering element coupled to the front wheel for controlling a traveling direction of the front wheel; and a transmission component coupled to the rear wheel for converting The user's pedaling force drives the rear wheel. The bicycle of claim 6, wherein the insulating material comprises an inorganic fiber composite. The bicycle of claim 6, wherein the heat insulating material comprises at least one of a glass fiber, a ceramic fiber, and an asbestos fiber, and a resin. The bicycle of claim 6, wherein the thermally conductive material comprises a metal mesh and a resin. The bicycle of claim 9, wherein the metal mesh has a thickness of between 0.05 mm and 1 mm. A bicycle according to claim 6, wherein the bicycle frame is composed of a carbon fiber composite material.